Joseph blyston



UNITED STATES PATENT OFFICE.

JOSEPI BLYSTON,'OF ST. LOUIS, MISSOURI.

sAsH-FAS'TENER. y y

SPECIFICATION forming part of Letters Patent No. 244,734, dated July 26, 1881.

Appiication flied May "1, 1881. (Model.)

' following is a full and exact description.

The nature of my invention consists iu pro-4 n viding the sash with a series of inclined slots" and shoulders, and the window'casing with an inclined chamber, each large enough to receive an ordinary marble or ball, and a sliding bar to hold the ball back in the chamber when desired, and to lock the sash in any desired position. l

Figure l shows a side sectional view of my invention. Fig. 2 is an elevation of the windowjamb and the sash, showing the recess, ball, and the slide. Fig. 3 is a view of the jamb, with the ball and slide and the edge of the sash, showing the notches in the sash.

A in said figure :is a ball or marble.-

' B is a chamber cut in the casing of the window, large enough to receive the ball, and is inclined at the lower side.

C C are recesses cutin the sash,large enough to receive the ball, but not deep enough to let it in more than about half-way. These recesses have inclined bearings upward, so that when the ball A rolls down into the recess and the window-sash passes down it will engage the ball between the incline in C and the incline in B and prevent the sash from passing down. The recesses are also provided with square shoulders, or cut with square shoulders on the lower side, so that when the window is raised the ball is thrown back into the chamber B and the sash passes up until the next slot, C, comes opposite the chamber B, when the ball falls into the recess C and prevents the sash from coming down.

b is av sliding bar, and works in a slot between the window-bead, the sash,and the window-jamb, a little above and in front of the chamber B,so that when the Window is thrown up and `you desire to bring it down you have but to shove the thumb-piece in which holds the ball in the chamberB and permits the sash to move up and down freely.

O is another chamber cut opposite the lower part of the incline of chamber B,- so that when the ball rolls into it and the sliding bar is shoved in it prevents the ball from rising into the chamber B, and consequently operates as a lock for the sash. v

What I claim, and for which I ask Letters Patent tobe granted me, is-

A sash-holder consisting of a ball within a recess in the jamb of a window-frame, in combination with a sliding bar inserted between the sash and the jamb, infront of the ball, and a series of notches in the edge of the sash, constructed to receive about halt` of the ball to lock the sash either when up or down,

substantially as and for the purpose described.

JOSEPH BLYSTON.

Witnesses:

WM. M. ECOLES, M. S. ECOLES. 

